Wasim Sajjad was born on March 30, 1941 in Jalandhar. He is the son of late Justice Sajjad Ahmad Jan. Wasim Sajjad has excellent academic credentials; he graduated in 1961 from Punjab University with first class honors in English. He topped and secured gold medals in several other exams at the University including F. E. L., L. L. B. and M. A. in Political Science in 1964. Wasim Sajjad was not only outstanding in his academics but also in sports and debates. He was awarded three gold medals for public speaking during his university days. He also won the Ruchi Ram Sahni and Krishan Kishor Groveur declamation prize from Punjab University. He was placed on the role of honor of the University Law College Lahore in 1963 for his outstanding performance as a debater, sportsman and student. He was also the captain of the tennis team at Law College in 1962.
Wasim Sajjad, on the basis of his outstanding academic record, was selected for the Rhodes Scholarship to study law at the Oxford University. He secured Honors in Jurisprudence in 1966, and a Degree of Bachelor of Civil Law from Oxford University in 1967. He did his M. A. from Oxford University in 1967. He obtained first position in Administrative Law at Oxford and his Barrister of Law from the Inner Temple, London. At London, Wasim Sajjad not only focused on his studies, but was also the President of the Oxford University Islamic Society in 1966, and President of the Oxford University Pakistan Society from 1965 to 1966. He was elected President Oxford University Birkenhead Society 1965-1967, and as Secretary Wadham College, Oxford, in 1966.
Wasim Sajjad has a long and extended career in public service. Wasim Sajjad is the only practicing advocate in Pakistan holding a Bachelors of Civil Law from Oxford University. He served as a lecturer of Constitutional Law at University Law College for a year. He appeared in a large number of cases of constitutional and legal importance before the High Court